storage/mozStorageAsyncStatementParams.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozStorageAsyncStatementParams.h"
   8
   9 #include "nsJSUtils.h"
  10 #include "nsString.h"
  11
  12 #include "jsapi.h"
  13
  14 #include "mozilla/ErrorResult.h"
  15 #include "mozilla/dom/MozStorageAsyncStatementParamsBinding.h"
  16 #include "mozStorageAsyncStatement.h"
  17 #include "mozStoragePrivateHelpers.h"
  18
  19 namespace mozilla {
  20 namespace storage {
  21
  22 ////////////////////////////////////////////////////////////////////////////////
  23 //// AsyncStatementParams
  24
  25 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AsyncStatementParams, mWindow)
  26
  27 NS_INTERFACE_TABLE_HEAD(AsyncStatementParams)
  28   NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
  29   NS_INTERFACE_TABLE(AsyncStatementParams, nsISupports)
  30   NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(AsyncStatementParams)
  31 NS_INTERFACE_MAP_END
  32
  33 NS_IMPL_CYCLE_COLLECTING_ADDREF(AsyncStatementParams)
  34 NS_IMPL_CYCLE_COLLECTING_RELEASE(AsyncStatementParams)
  35
  36 AsyncStatementParams::AsyncStatementParams(nsPIDOMWindowInner* aWindow,
  37                                            AsyncStatement* aStatement)
  38     : mWindow(aWindow), mStatement(aStatement) {
  39   NS_ASSERTION(mStatement != nullptr, "mStatement is null");
  40 }
  41
  42 JSObject* AsyncStatementParams::WrapObject(JSContext* aCx,
  43                                            JS::Handle<JSObject*> aGivenProto) {
  44   return dom::MozStorageAsyncStatementParams_Binding::Wrap(aCx, this,
  45                                                            aGivenProto);
  46 }
  47
  48 void AsyncStatementParams::NamedGetter(JSContext* aCx, const nsAString& aName,
  49                                        bool& aFound,
  50                                        JS::MutableHandle<JS::Value> aResult,
  51                                        mozilla::ErrorResult& aRv) {
  52   if (!mStatement) {
  53     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  54     return;
  55   }
  56
  57   // Unfortunately there's no API that lets us return the parameter value.
  58   aFound = false;
  59 }
  60
  61 void AsyncStatementParams::NamedSetter(JSContext* aCx, const nsAString& aName,
  62                                        JS::Handle<JS::Value> aValue,
  63                                        mozilla::ErrorResult& aRv) {
  64   if (!mStatement) {
  65     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  66     return;
  67   }
  68
  69   NS_ConvertUTF16toUTF8 name(aName);
  70
  71   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
  72   if (!variant) {
  73     aRv.Throw(NS_ERROR_UNEXPECTED);
  74     return;
  75   }
  76
  77   aRv = mStatement->BindByName(name, variant);
  78 }
  79
  80 void AsyncStatementParams::GetSupportedNames(nsTArray<nsString>& aNames) {
  81   // We don't know how many params there are, so we can't implement this for
  82   // AsyncStatementParams.
  83 }
  84
  85 void AsyncStatementParams::IndexedGetter(JSContext* aCx, uint32_t aIndex,
  86                                          bool& aFound,
  87                                          JS::MutableHandle<JS::Value> aResult,
  88                                          mozilla::ErrorResult& aRv) {
  89   if (!mStatement) {
  90     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  91     return;
  92   }
  93
  94   // Unfortunately there's no API that lets us return the parameter value.
  95   aFound = false;
  96 }
  97
  98 void AsyncStatementParams::IndexedSetter(JSContext* aCx, uint32_t aIndex,
  99                                          JS::Handle<JS::Value> aValue,
 100                                          mozilla::ErrorResult& aRv) {
 101   if (!mStatement) {
 102     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
 103     return;
 104   }
 105
 106   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
 107   if (!variant) {
 108     aRv.Throw(NS_ERROR_UNEXPECTED);
 109     return;
 110   }
 111
 112   aRv = mStatement->BindByIndex(aIndex, variant);
 113 }
 114
 115 }  // namespace storage
 116 }  // namespace mozilla